“So you’re depressed? oh just shake it of - it’s just in your head! Would we say the same thing to someone with a broken leg? Oh just walk it off - it’s just in your leg!”
There’s a little bit of truth in this joke sadly.
Why do we value physical health over phycological health? Why we learn body hygiene and not emotional hygiene?
Have a look at this Ted talk! It’s cool. And funny!